Kajian Aplikasi Efek Dingin Udara Subuh untuk Pengkondisian Udara Ruangan : Studi Kasus di Kota Medan
Abstract: In recent
years, residential and
comercial buildings in
typical city of
Indonesia such as Medan
consume a huge
amount of high
grade energy for
ventilation and air
conditioning systems. Air conditioning system, renewable energy powered,
is expected to play an important role
in order to
reduce high grade
energy consumption. The
present study promotes
the posstibility of using
the cooling effect
resulting from ambient
temperature in daybreak.
The water is cooled
by ambient as
a thermal cold
storage, the cool
water is then
transfer into the conditioned space.
The measurements of the following
parameters ambient temperature, relative humidity, solar
radiation, wind speed have been performed using HOBO microstation in every minute
for 3 months.
The results show
that ambient in
daybreak can provide
cooling water with temperature
of lower than
23oC. Commercial CFD
is used to
simulate cooling process by
using this cold
water. The simulation
results shows that
maximum ambient temperature of
30.39oC can be cooled up to 26.1oC. In other words, the maximum temperature in
the room can be decreased in order of 4.8oC. The main conclusion can be drawn
here is that cooling effect in
the ambient temperature
can be used
to provide cooling
air for conditioned room.
Penulis: Himsar Ambarita
Kode Jurnal: jptmesindd120101
